Home / 55,663.38-83,503.72-18,724.50

Finding the Fourth Proportional to 55,663.38, 83,503.72 and 18,724.50

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Solution

The fourth proportional to 55,663.38, 83,503.72 and 18,724.50 is: 28,089.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,663.38 : 83,503.72 = 18,724.50 : x
  2. Step 2: Convert to fraction form
    55,663.38/83,503.72 = 18,724.50/x
  3. Step 3: Cross multiply
    55,663.38x = 83,503.72 × 18,724.50
  4. Step 4: Simplify right side
    55,663.38x = 1,563,565,405.14
  5. Step 5: Solve for x
    x = 1,563,565,405.14/55,663.38
  6. Step 6: Final answer
    x = 28,089.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.